Diving marker



FIG. 1 is a perspective view of the diving marker;

FIG. 2 is another perspective view of FIG. 1 thereof;

FIG. 3 is a front and/or back planar view of FIG. 1 thereof, the front and back being symmetric/mirror images;

FIG. 4 is a right side and/or left side planar view of FIG. 1 thereof, the right and left sides being symmetric/mirror images;

FIG. 5 is a top planar view of FIG. 1 thereof; and,

FIG. 6 is a bottom planar view of FIG. 1 thereof.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a diving marker, as shown and described. 